Ontario Public Service Employees Union

Ontario Public Service Employees Union (OPSEU/SEFPO) is a trade union that represents employees working in the Ontario public sector and related agencies. Its core activities include negotiating collective agreements, handling grievances, providing health and safety support, and offering educational programs for members. The union serves workers employed by provincial ministries, crown agencies, hospitals, community care facilities, and various board and commission employees. Through these services OPSEU/SEFPO seeks to improve wages, working conditions, and job security for its membership.

OPSEU/SEFPO is one of the largest labour organizations operating within the province of Ontario, with a membership that spans numerous locals across the region. While exact figures are not repeated here, the union’s reach extends to tens of thousands of workers in diverse occupational groups such as administrative staff, correctional officers, nurses, and social service providers. Its presence is felt in both urban centres and smaller communities throughout Ontario, allowing it to address sector‑wide issues as well as local workplace concerns. The union’s broad base enables it to engage in province‑wide advocacy and collective bargaining initiatives. A distinguishing attribute of OPSEU/SEFPO is its explicit commitment to representing both English‑ and French‑speaking public sector workers, reflected in its dual name and bilingual service delivery. The union maintains a democratic governance structure in which leaders are elected by the membership, including a president, first vice‑president, and secretary‑treasurer, alongside an executive board drawn from locals. Affiliation with the Canadian Labour Congress connects OPSEU/SEFPO to a national network of unions, facilitating coordinated action on legislative and social policy matters. Additionally, the union operates specialized committees—such as those focused on women’s rights, Indigenous workers, and retirees—that address equity and inclusion within the public sector workforce.

OPSEU/SEFPO is an independent trade union; it is not a subsidiary of any corporation or government entity, and its governance derives solely from its membership. While it collaborates with provincial agencies and participates in tripartite consultations, it retains full autonomy over its internal affairs and decision‑making processes. Its relationship with the Canadian Labour Congress is one of affiliation rather than ownership, allowing the union to benefit from shared resources while preserving its independent identity.

In early April 2025, OPSEU/SEFPO disclosed a cybersecurity incident in which unauthorized actors gained access to its information technology systems, prompting the activation of incident response procedures. The union engaged third‑party cybersecurity experts, notified law enforcement and legal counsel, and temporarily suspended its Member Portal while investigations and remediation efforts proceeded. As of the latest statements, the investigation into whether any personal or organizational data was compromised remained ongoing, with the union emphasizing its commitment to restoring secure operations.